A few points though. Some of us do not agree with the "alterhuman" terminology. It seemed to gain use on Tumblr, I think? So maybe add a caveat that it's the newer term for simply "otherkin"? That said, otherkin is also the umbrella term that includes therians.
Otherhearted - mention that the term can also be called 'kith'.
I would probably include phantom limbs as it's own definition since it's not the same as phantom shifting. Some people experience phantom limbs that are constant, or near-constant, hence no shifting occurs.
Sensory shifting is also called perception shifting.
How is a spiritual shift different than an aural or mental shift?